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SAFAR and follow-ons
Small Aircraft Future Avionics Architecture Fly-By-Wire for CS23 Aircraft
Core Technology for General Aviation and RPAS Reimund Kueke Airbus DS Airborne Solutions GmbH, Bremen, Germany 1
Airbus DS Airborne Solutions GmbH
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VISION – Personal Air Transport
The ability of personalized air travel through the use of an on-demand, highly distributed air transportation AUTOMATED AIRSPACE SELF-OPERATED AIRCRAFT SAFE COST EFFICIENT FLEXIBLE CAPABLE
* SATS, Nasa 2004
Airbus DS Airborne Solutions GmbH
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SAFETY – Automotive vs. Aviation
COMPARISON AUTOMOTIVE VS AVIATION SAFETY
CS25 PVEHICLE {CAT} < 10-6 PCONTROL {CAT} < 10-9
CS23 / Class 1 PVEHICLE {CAT} < 10-4 PCONTROL {CAT} < 10-6
Automotive PVEHICLE {CAT} ~ 5*10-6 PCONTROL {CAT} < 10-7(8)
DIFFERENCES AUTOMOTIVE VS AVIATION AUTOMOTIVE Safety (Integrity) Very High Reliability Fail / Operational 10min AVIATION Safety (Integrity) Very High Reliability Very Hihg
SAFAR OBJECTIVES CS23 / Class 2 PVEHICLE {CAT} < 10-5 PCONTROL {CAT} < 10-7
scalable to CS25 PVEHICLE {CAT} < 10-6 PCONTROL {CAT} < 10-9
Airbus DS Airborne Solutions GmbH
Fly-By-Wire - Core Technology
CS23 certifiable Fly-by-Wire Mechanical backup for safety and certification reasons
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Airbus DS Airborne Solutions GmbH
Fly-By-Wire - Modules for aircraft control and automation
FBW system based on CPM (Core Processing Module) IOM (I/O Module) ACM (Actuator Module) SCM (Star Coupler Module) PDM (Power Distribution Module)
Design drivers DO 254 compliant design Certifiable Interfaces to redundant FlexRay busses EMI-, lightning protection
Small, light, robust Cost efficient
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PDM SCM ACM IOM CPM
Airbus DS Airborne Solutions GmbH
Fly-By-Wire - Platform Architecture Capable for Attitude hold Auto throttle
Auto take off Auto climbing Auto cruising Auto approach Auto landing
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Airbus DS Airborne Solutions GmbH
FLY-BY-WIRE - Integration on Diamond DA42 1/2
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FBW Avionics
Power Distribution
FBW Avionics
Power Distribution
3rd Brake Circuit (FBW controlled)
6x Actuators
Airbus DS Airborne Solutions GmbH
FLY-BY-WIRE - Integration on Diamond DA42 2/2
8 FBW-Avionics Test system
Power Distribution
3rd Brake Circuit (FBW controlled)
6x Actuators
Airbus DS Airborne Solutions GmbH
FLY-BY-WIRE – Instrumentation of DA42 Cockpit
Safety Pilot FBW Pilot
Multi Functional Flight Control Unit
Emergency Disconnect Stick
Lever
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Airbus DS Airborne Solutions GmbH
CPU IOnet CPUnet CPU IO
net
I/O-ModuleComputing-
Module I/O-Module
App.A
App.B
RT-OSDriver
App.C
App.D
RT-OSDriver
App.E
App.F
RT-OSDriver
network
sensors,actuators
sensors,actuators
CPU IOnet CPUnet CPU IO
net
I/O-ModuleComputing-
Module I/O-Module
App.A
App.B
RT-OSDriver
App.C
App.D
RT-OSDriver
App.E
App.F
RT-OSDriver
network
sensors,actuators
sensors,actuators
FLYFlexible Platform Approach
Integrated Avionics Architecture • Application: „Law” and system-management API • Abstraction: Hardware / OS
Advanced Platform Architecture • Application: “Law” (virtually simplex) API • Abstraction: System (red. aggregates,..) • Abstraction: Platform instance (red. modules,..) • Abstraction: Modules (internally redundant) • Abstraction: Hardware / OS
Platform Management (plama)
• Clear Separation of “Laws” and “System Management” • Generic Approach of System Management (Platform Management)
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Airbus DS Airborne Solutions GmbH
Tool-Suite DSL: Platform Architecture &
Data Path
DSL: Plama Structure
DSL: SW Component
Transformation
Model: Platform Archit & Data Path
Model: Plama Structure
Model: SW Components
Parameter Source Code
High Level System Specification (YHD)
SR
SR
Design-Knowledge (Model)
CPU IOnet CPUnet CPU IO
net
IOM CPM ACM
App.A
App.B
RT-OSDriver
network
sensors,actuators
sensors,actuators
PLAMA
App.C
App.D
RT-OSDriver
PLAMA
App.E
App.F
RT-OSDriver
PLAMA
FLY-BY-WIRE – Software development via a tool suite
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Airbus DS Airborne Solutions GmbH
Tool-Suite
DSL: Platform Architecture &
Data Path
DSL: Plama Structure
DSL: SW Component
Code Generation Templates
Model: Platform Archit & Data
Path
Model: Plama Structure
Model: SW Components
Parameter Source Code
High Level System Specification
SR
SR
Law Platform Instance
System
SRD
SDD
Source-Code
FLY-BY-WIRE – Highly automatic software development
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Airbus DS Airborne Solutions GmbH
Tool-Suite
DSL: Platform Architecture &
Data Path
DSL: Plama Structure
DSL: SW Component
Code Generation Templates
Model: Platform Archit & Data
Path
Model: Plama Structure
Model: SW Components
Parameter Source Code
High Level System
Specification
SR
SR
Auto-Testcase Generation
Law Platform Instance
System
SRD
SDD
ATC-Gen
ATC- Gen.
Source-Code
SR
Axx Automatic SW
Instantation
xAx Automatic
Documentation
xxA Automatic Verification
FLY-BY-WIRE – AAA Process compliant to DO 178C
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Airbus DS Airborne Solutions GmbH
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SAFAR – Easy Handling Characteristics Fly-by-Wire technology (handling) Decoupling of aircraft states Automatic closing of inner and
outer control loops Automatic disturbance rejection
Flight envelope protection (safety) Keep aircraft within safe regions
of the flight regime Control allocation with system health
monitoring
Automatic flight (safety / handling / comfort) Automatic operation
in critical flight phases Emergency safe return Full automatic flight
Airbus DS Airborne Solutions GmbH
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SAFAR – Integration in ATM SESAR 2020+
SMOOTH INTEGRATION OF SAFAR AIRCRAFT WITHIN SESAR
New Airspace Structure
(managed and unmanaged airspace)
Flexible use of airspace 4D Trajectory based
operation System Wide
Information Management (SWIM)
Datalink
Airbus DS Airborne Solutions GmbH
AutoFlight – 4D trajectory planning
Global & Standarized UTM coordinates Holding patterns with
procedural entries
Flyable Missions Internal aircraft-
dependent plan checks
Flexible Missions Modifiable on board 3D spatial & velocity
splines
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Holding Pattern
Pattern Entry
From Stuttgart Flyable curve radius
for DA42
Airbus DS Airborne Solutions GmbH
AutoFlight – Control Laws
Performance and Reliability Verification Control theory – Simulations – Iron Bird – Test flights
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Inner Loops
Actuators and Engine Outer
Loops
ATC clearances Mission updates
Mission Management
Flap and gear configuration
Sensors
Planned Trajectory
•Monolithic controller for all airborne operations less effort to certify in the future •Adapted controller for ground operations
•Provides ATOL functionality
•Flare mode and consistent transitions
Airbus DS Airborne Solutions GmbH
NEW INNOVATIVE AIRCRAFT SYSTEMS
OPALE 42 Optionally Piloted Aircraft Long Endurance based on Diamond DA42
Airborne sensor platforms
based on existing general aviation (GA) aircraft Flexible missions
(manned, unmanned with safety pilot, unmanned) using Fly-By-Wire Technology Cost efficient, highly reliable
technology 21
Airbus DS Airborne Solutions GmbH
CONCLUSIONS
STABLE TECHNOLOGY PLATFORM Time is ready to realize full authority fly-by-wire avionics on small aircraft based on experience in the automotive industry. ATC/ATM INTEGRATION
Based on SAFAR fly-by-wire avionics architecture main SESAR functionality will be available for Small Aircraft as well. SMALL AIRCRAFT
A lot of aircraft with modern design and low lifecycle costs exist which are potential candidates for such a fly-by-wire avionics. NEW MARKET OPPORTUNITIES
From improving safety, comfort and efficiency of general aviation aircraft up to new innovative aircraft systems.
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Airbus DS Airborne Solutions GmbH
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THANK YOU FOR YOUR INTEREST ! PROJECTS (2008-2015) SAFAR (FP7)
Airbus DS, DFS, TU Delft, Honeywell, Diamond Aircraft, Septentrio, U Stuttgart (ILS/IFR), GMV FLYSMART (LUFO)
Airbus DS, Diamond Aircraft, Smart Embedded Technologies, U Stuttgart (ILS/IFR) eSAFE (Take Off)
Diamond Aircraft, Airbus DS, U Stuttgart (ILS/IFR)
Airbus DS Airborne Solutions GmbH
Partly funded by:
